Parameters Affecting the Velocity of Sound in Transformer Oil

@article{Howells1984ParametersAT,
  title={Parameters Affecting the Velocity of Sound in Transformer Oil},
  author={E M Howells and E. T. Norton},
  journal={IEEE Transactions on Power Apparatus and Systems},
  year={1984},
  volume={PAS-103},
  pages={1111-1115}
}
When attempting to locate partial discharge (Pd) sources in operating transformers, it was found that the speed of the acoustic waves propagating in the transformer oil differed from the value suggested in the literature. Subsequent investigations showed that the sonic velocity in transformer oil was not constant but depended upon a complex relationship… CONTINUE READING